Centrifugal extractor.



R. M. SMITH.

CENTRIFUGAL EXTRACTOR.

APPLICATION FILED AUG.2I. 191s."

Patented Aug. 13; 191&

IN VENTLOR. Mi

WITNESS -r"" Al bi;

A TTORNEYS fry ROBERT M. sMrrH, or sAiv -cEN'rnIFnGAL nxrnAcron.

To all whom itmay concern;

Befit known thtt I, RQBE I1T h Li SMITH, a citizenYof theUnited States, residing at, the city and county of San Francisco and State. of California, have invented certain new and useful Improvements in JCen'trifuA gal Extra ctors, of which the following is a specification. .a I x V Y The present invention relates to ce'ntrifm' gal extractors and more particularly to a cover for the baskets of centrifugal extrac,-.. tors, particularly that type. adapted for, laundries, and by the use of which the oper ators are, prevented from disturbing the con; tents of the basket after the sameis inoper} ation; one whereinthe cover'fis jauto natirj cally maintained, lockedfin closed position during the rotation of the centrifugal, one, provided with means for automatically 10s; .ing the cover onto the basket'atthesta rting or commencement of the rotation thereof;- and onewhereby the operators are protect-v ed from injury, du'eto carelessness in ex amining the contents of the basketwhilethe same is in operation.-

V V H The inventionconsists'broadly in a cover for closing the open top of the rotary basket of a centrifugal extractor andwhich is, re; quired to be in a po'sition to close the open top of the basket at the 'co'mmenc'emenfof the rotation of the same. is I" At present, covers'areprovided for clos ing the centrifugal, but thesame are 'perfo-,

rated andare secured tothe curb of the ap paratus, it being optional with theattendant whether the cover is closed prior to the operation, of the basket or not, and-in this construction the operatoris liablet'o injury due to neglecting to close'the cover; and

whether or not the cover is raised or lowered,

a suitable cover preferablyof cloth, is recc quired to be positioned in the basket over. the contents thereof, to exclude therefrom dust in the atmosphere which is drawn into the basket by the suctioncreated by the highrotationthereof.

It will be apparent that thepresent-invention protects the operator from injury by preventing access to thejcontentsbf the basket after the rotation thereofhas commenoed, until such time as the basket is again at rest and in a certain position. 1 7

With the above mentioned and other ob jects in View, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the ac- "Specification of Letters rat-eat.

, 7 Application, g a'i Patented Au 13, 191e, 1916. seri i vo. 115,968., .7 o

companying drawings, and pointedoutl gin the claims hereto. appended, itibeing under-o stood that various c hahges in the form, pro-g portion, siz e, and minor-details ,of construc-. tion within the scope of the cflaimsinay be.

resorted towithoutdeparting fron the spirit orsacrificing any of theadvantages of the; lnvent on. i

To'more fully comprehendtheinvention,

reference is directed to the drawings wherein: g H

Figure 1 is aview iii elevation of an ex tractor with anelnbodiment of iny. invention appliedthereto. i Q i j 7 Fig. ,2 I is an enlarged, broken sectional view of an extractor, illustrating-my in i-i proved cover hinged'to close the. open'top of the basket thereof, and theautomatically, controlled hoover-locking: means, and the means for'closing the 'covenandior pre# venting the opening, of the same until the basket isat'a point of rest andin a certain position. j 1 o g g c 1 Fig. 3 is a viewlin detail plan of the con-' s'truction'disclosed in Fig. 2. 7

Referring more particularly to the se'v-, eral views of the drawings whereincl-ike characters of reference designate one; sponding parts, 1 indicates a-fsuitable" base for-supporting a suitable extractor curb 2, opened at its top as at 3. Aobasket 41 of any well known type,;ope11 at itsto as at 5, is rotatably. mounted within thecurb 2 ,ona shaft 6, rotated at high speed in any suit\ able manner as by the belt 7 passing around the pulleys 8 and driven by power transmit-- ted to one-of the pulleys 9, a A j suitable imperforate cover 10 ispro-. videdfor closing the opening 5 in the basket, and the same is preferably of a size to extend beyond the peripheral edges? of the" accompanying opening, to rest on themainj body portion of thebasket, but of a size smaller'tl'i'aii the'.

opening 3 in thecurbQ." 'The coveris cut hinge members 14, which are hooked attheir i lower endsasat 14" to engage the rolled edge 15, arranged circumferentiall-y of the opening 5 in" thebasket 4. Pivotally connected to the hinge members 14 through the pintles 16 are cooperating hinge portions 17 secured in any suitable manner as by rivets 18, to the main portion of the cover 10 the free hooked ends of said catches are adapted to swing outwardly and engage under the rolled edge 15 on the rotation of the basket 4. The basket on coming to a point of rest permits the catches 20 to assume the position as in Fig. 2, at which time the cover may be raised and lowered.

' To insure the closing of the coverlO'at the commencement of the rotation of the basket a suitable lug 23 is secured to the curb 2 to overhang the open top thereof, and said lug is provided with a surface beveled as at 24 in the direction of the rotation of the basket as in Fig. 3. To raise the coverwhen the basket is at a point of rest, it is necessary that the portion 12 of the cover, lie beneath the lug this position ing permitting the raising of the free edge of the cover. For safety the cover 10 should be closed prior to the rotating of the basket, but should the same remain raised, due to the negligence of the operator, and the basket be rotated, the engagement of the beveled surface 24 of the lug 23 with the edge of the raised cover will throw the same in the closed position, prior to the basket making a complete revolution.

To facilitate the raisin of the cover, 'a suitable handle 25 is provided for this'purpose.

Having thus described I claim is:

1. In combination with a centrifugal ex-' tractor having a stationary open topped curb and an open topped basket rotatably mounted therein, a removable cover hinged at one side to said basket and for insertion through the opening in said curb and for seating upon said basket for closing the open top thereof and means for cooperating With the cover to close the same during the rotation of said basket. r v

2. In combination with a centrifugal extractor having a stationary open topped curb and an open topped basket rotatably Copies of this patent may be obtained for my invention, what mounted therein, a cover for closing the .open top ofv said basketand hinged at one side thereto, Weight controlled means for locking the cover in closed position during the rotation of said basket, said means automatically releasing on the basket arriving at a point of rest and means for insuring the closing of the cover prior to the rotation of the basket.

3. In combination'with a centrifugal .extractor having a stationary open topped curb and an open topped basket rotatably mounted therein, a cover for closing the open top of. said basket and hinged at one side thereto, and means for automatically moving said cover to close the open top of said basket at the beginning of the rotary movement of said basket.

4. In combination with a centrifugal eX- tractor having a stationary open topped side thereto, and capable of rising through the opening in said curb, means for automatically moving the cover when raised to close the open'top of said basket during the rotation thereof, and means for automatically locking the-cover in closed during the rotation of saidjbasket.

6. In combination with acentrifugal extractor having a stationarv open topped curb and an open topped basket rotatably mounted therein, a cover for closing the open top of said basket and hinged at one' side thereto, and capable of rising through the opening in said curb, means for moving" position 1 the cover when'raised to close the open too i of said basket during 'the rotation thereof,

position. I r

I In testimony whereof I have signed my name to this specification in the presence oftwo subscribing witnesses,

and mean's'for locking the cover in'closed .ROBERTM. sM TH;

' Witnesses:

' H. 0. SMITH,

D. B. RICHARDS.

five cents each, by addressingthe Commissioner of Patents, Washington,II).(13. 

